Effect Of A1_2O_3 Nanoparticles In Plasticized PMMA-LiCIO4 Based Solid Polymer Electrolyte

摘要

We have studied the broadband complex conductivity spectra covering a 0.01 Hz-3 GHz frequency range for plasticized PMMA-LiClO4 based solid polymer electrolyte embedded with Al_2O_3 nanoparticle. We have analyzed the conductivity spectra using the random free-energy barrier model (RBM) coupled with electrode polarization contribution in the low frequency region and at high temperatures. The temperature dependence of the ionic conductivity obtained from the analysis has been analyzed using Vogel-Tammann-Fulcher equation. The maximum ionic conductivity~ 1.93xl0~(-4) S/cm has been obtained for 1 wt% Al_2O_3 nanoparticle.